ID不会在Rails 4中跨模型/控制器保存到DB

我有一个房东模型，一个LandlordCompany模型和一个LandlordAddress模型。我需要将landlord_id保存到landlord_comapnies表中，并将landlord_company_id保存到landlord_address表中。我有hidden_​​fields试图完成我过去所做的事情，但是在这种情况下不起作用。我想念什么？任何帮助都欢迎。提前致谢！

房东

class Landlord < ActiveRecord::Base
   has_many :landlord_companies
end

landlord_company.rb

class LandlordCompany < ActiveRecord::Base
   belongs_to :landlord
end

landlord_address.rb

class LandlordAddress < ActiveRecord::Base
   belongs_to :landlord_company
end

_form.html.erb <-房东公司

<div class="field">
   <%= f.hidden_field :landlord_id, :value => params[:landlord_id] %>
</div>

_form.html.erb <-房东地址

<div class="field">
   <%= f.hidden_field :landlord_company_id, :value => params[:landlord_company_id] %>
</div>

Routes.rb

resources :landlords do
   member do
      resources :landlord_companies do
         member do
            resources :landlord_addresses
         end
      end
   end
end

房东控制器

private
# Use callbacks to share common setup or constraints between actions.
def set_landlord
  @landlord = Landlord.find(params[:id])
end

# Never trust parameters from the scary internet, only allow the white list through.
def landlord_params
  params.require(:landlord).permit(:name, :rating, :contact_name, :contact_number, :listing_agent_id, :own_application, :own_credit, :accepts_roommate_matchups, :management_company)
end

房东_公司控制人

private
# Use callbacks to share common setup or constraints between actions.
def set_landlord_company
  @landlord_company = LandlordCompany.find(params[:id])
end

# Never trust parameters from the scary internet, only allow the white list through.
def landlord_company_params
  params.require(:landlord_company).permit(:llc_name, :landlord_id)
end

房东地址控制器

private
# Use callbacks to share common setup or constraints between actions.
def set_landlord_address
  @landlord_address = LandlordAddress.find(params[:id])
end

# Never trust parameters from the scary internet, only allow the white list through.
def landlord_address_params
  params.require(:landlord_address).permit(:address_line_one, :address_line_two, :city, :state, :zip, :super_name, :super_number, :landlord_company_id, :latitude, :longitude)
end